US20020140677A1 - Optical mouse having an integrated processor - Google Patents
Optical mouse having an integrated processor Download PDFInfo
- Publication number
- US20020140677A1 US20020140677A1 US09/821,180 US82118001A US2002140677A1 US 20020140677 A1 US20020140677 A1 US 20020140677A1 US 82118001 A US82118001 A US 82118001A US 2002140677 A1 US2002140677 A1 US 2002140677A1
- Authority
- US
- United States
- Prior art keywords
- microprocessor
- integrated circuit
- optical mouse
- analog
- digital signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 24
- 239000000758 substrate Substances 0.000 claims description 4
- 241000699666 Mus <mouse, genus> Species 0.000 description 8
- 241000699670 Mus sp. Species 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
- G06F3/0383—Signal control means within the pointing device
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
Definitions
- the invention is directed towards the field of computer input devices, in particular towards the field of optical mice.
- FIG. 1 Prior art optical mice have been discrete systems, as shown in FIG. 1.
- One integrated circuit includes an optical sensor, analog-to-digital converter, and digital signal processor while a second IC includes a general purpose processor.
- the interface is limited to a few signals and the amount of data bandwidth that is available for communication of variables and data is limited. This limit of the interface causes the prior art to rely on fixed digital signal processing algorithms and minimal movement reports.
- the cost of implementing different algorithms in hardware is high and leads to inflexibility for the end customer.
- the limited information bandwidth between the two chips prohibits the use of the separate microprocessor as the navigation engine. This causes the customizing of the digital signal processing to impossible and the use of adaptive algorithms is precluded.
- An integrated circuit for optical navigation includes an optical sensor, an analog-to-digital (A/D) converter, a microprocessor, and memory integrated into a unitary substrate.
- the optical sensor generates analog surface data.
- the A/D converter converts the analog surface data into digital surface data.
- the microprocessor manages the surface data.
- Memory both programmable and RAM, is included for additional data processing.
- the microprocessor manages the navigation operations of the mouse.
- the microprocessor may include a digital signal processor, a hardware controller, or an input/output controller. As these functions are incorporated into the microprocessor, the user may customize features such as navigation parameters, user interface operations and power savings.
- FIG. 1 illustrates an example of the prior art.
- FIG. 2 illustrates a preferred embodiment of the invention.
- FIG. 1 illustrates a preferred embodiment of an optical mouse.
- the optical mouse integrated circuit includes an optical sensor 12 , an analog-to-digital converter 14 , a microprocessor 16 , random access memory 18 , and programmable memory 20 .
- An optional digital signal processor 22 interposes the analog-to-digital converter 14 and the microprocessor 16 .
- An optional hardware controller 24 may interpose the analog-to-digital converter 14 and the microprocessor 16 or the functionality of hardware controller 24 may be designed into the microprocessor 16 .
- the microprocessor 16 may also include an input/output controller 26 .
- an optical sensor transmits data that describes a surface to an analog-to-digital (A/D) converter.
- a microprocessor bidirectionally communicates with random access memory (RAM), programmable memory, and the A/D converter.
- RAM random access memory
- programmable memory may be ROM, EPROM, SRAM, EEPROM or any combination of these.
- an optional hardware controller and an optional digital signal processor have been added to the microprocessor.
- the integrated circuit further includes input/output pads for communication.
- the single or multi-thread microprocessor alone or with optional digital signal processing hardware can control key parameters of the sensor electronics and perform the digital signal processing required for tracking surfaces.
- the processor alone or in conjunction with optional digital hardware, further executes the input and output functions needed for mouse operation. As this functionality is incorporated into the mouse, it may range from providing movement information in a quadrature manner or implementing very complex I/O standard interface, e.g. USB, PS 2 , or SPI interfaces. Additional functionality includes built in self test for ease of production testing, algorithms for motion detection al id custom filtering, power saving mode, etc. The user may customize the mouse operation.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
An optical mouse integrated circuit includes an optical sensor, analog-to-digital (A/D) converter, a microprocessor, optional digital signal processor, and memory. The optical sensor generates surface data. The A/D converter receives and generates the digital data. The microprocessor, alone or in conjunction with the digital signal processor, receives the digital data. Memory is used for storage. The microprocessor includes customizable features for navigation operation and power savings.
Description
- The invention is directed towards the field of computer input devices, in particular towards the field of optical mice.
- Prior art optical mice have been discrete systems, as shown in FIG. 1. One integrated circuit (IC) includes an optical sensor, analog-to-digital converter, and digital signal processor while a second IC includes a general purpose processor. With this two chip solution and the cost constraints on mice the interface is limited to a few signals and the amount of data bandwidth that is available for communication of variables and data is limited. This limit of the interface causes the prior art to rely on fixed digital signal processing algorithms and minimal movement reports. The cost of implementing different algorithms in hardware is high and leads to inflexibility for the end customer. The limited information bandwidth between the two chips prohibits the use of the separate microprocessor as the navigation engine. This causes the customizing of the digital signal processing to impossible and the use of adaptive algorithms is precluded. In addition to navigation inflexibility there is insufficient bandwidth present to allow the user to manipulate the tracking engines hardware to implement power saving operations that need to modify the tracking parameters in real time. While the use of the 2 chip solution has yielded a usable mouse the need for customization of the mouse to provide low power and/or higher performance with more flexibility necessitates a change in the architecture.
- An integrated circuit for optical navigation includes an optical sensor, an analog-to-digital (A/D) converter, a microprocessor, and memory integrated into a unitary substrate. The optical sensor generates analog surface data. The A/D converter converts the analog surface data into digital surface data. The microprocessor manages the surface data. Memory, both programmable and RAM, is included for additional data processing.
- The microprocessor manages the navigation operations of the mouse. The microprocessor may include a digital signal processor, a hardware controller, or an input/output controller. As these functions are incorporated into the microprocessor, the user may customize features such as navigation parameters, user interface operations and power savings.
- FIG. 1 illustrates an example of the prior art.
- FIG. 2 illustrates a preferred embodiment of the invention.
- FIG. 1 illustrates a preferred embodiment of an optical mouse. On a
unitary substrate 10, the optical mouse integrated circuit includes an optical sensor 12, an analog-to-digital converter 14, amicroprocessor 16,random access memory 18, andprogrammable memory 20. An optionaldigital signal processor 22 interposes the analog-to-digital converter 14 and themicroprocessor 16. Anoptional hardware controller 24 may interpose the analog-to-digital converter 14 and themicroprocessor 16 or the functionality ofhardware controller 24 may be designed into themicroprocessor 16. Themicroprocessor 16 may also include an input/output controller 26. - Within a single integrated circuit, an optical sensor transmits data that describes a surface to an analog-to-digital (A/D) converter. A microprocessor bidirectionally communicates with random access memory (RAM), programmable memory, and the A/D converter. The programmable memory may be ROM, EPROM, SRAM, EEPROM or any combination of these. In the embodiment shown, an optional hardware controller and an optional digital signal processor have been added to the microprocessor. The integrated circuit further includes input/output pads for communication.
- The single or multi-thread microprocessor alone or with optional digital signal processing hardware can control key parameters of the sensor electronics and perform the digital signal processing required for tracking surfaces. The processor, alone or in conjunction with optional digital hardware, further executes the input and output functions needed for mouse operation. As this functionality is incorporated into the mouse, it may range from providing movement information in a quadrature manner or implementing very complex I/O standard interface, e.g. USB, PS2, or SPI interfaces. Additional functionality includes built in self test for ease of production testing, algorithms for motion detection al id custom filtering, power saving mode, etc. The user may customize the mouse operation.
Claims (8)
1. An optical mouse integrated circuit comprising:
an unitary substrate;
an optical sensor generating data;
an analog-to-digital converter receiving and processing the data;
a microprocessor receiving the processed data; and
memory connected to the microprocessor;
wherein the optical sensor, analog-to-digital converter, microprocessor, and memory are formed on the unitary substrate.
2. An optical mouse integrated circuit, as defined in claim 1 , further comprising a digital signal processor interposing the analog-to-digital converter and the microprocessor.
3. An optical mouse integrated circuit, as defined in claim 2 , the digital signal processor further including a hardware controller.
4. An optical mouse integrated circuit, as defined in claim 1 , further comprising a hardware controller interposing the analog-to-digital converter and the microprocessor.
5. An optical mouse integrated circuit, as defined in claim 1 , the microprocessor further including an input/output controller.
6. An optical mouse integrated circuit, as defined in claim 5 , further comprising a digital signal processor interposing the analog-to-digital converter and the microprocessor.
7. An optical mouse integrated circuit, as defined in claim 6 , the digital signal processor further including a hardware controller.
8. An optical mouse integrated circuit, as defined in claim 1 , wherein the memory is programmable memory.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/821,180 US20020140677A1 (en) | 2001-03-28 | 2001-03-28 | Optical mouse having an integrated processor |
EP02002583A EP1246125A3 (en) | 2001-03-28 | 2002-02-04 | An optical mouse having an integrated processor |
JP2002087461A JP2002358158A (en) | 2001-03-28 | 2002-03-27 | Optical mouse integrated circuit |
KR1020020016614A KR20020077116A (en) | 2001-03-28 | 2002-03-27 | An optical mouse having an integrated processor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/821,180 US20020140677A1 (en) | 2001-03-28 | 2001-03-28 | Optical mouse having an integrated processor |
Publications (1)
Publication Number | Publication Date |
---|---|
US20020140677A1 true US20020140677A1 (en) | 2002-10-03 |
Family
ID=25232724
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/821,180 Abandoned US20020140677A1 (en) | 2001-03-28 | 2001-03-28 | Optical mouse having an integrated processor |
Country Status (4)
Country | Link |
---|---|
US (1) | US20020140677A1 (en) |
EP (1) | EP1246125A3 (en) |
JP (1) | JP2002358158A (en) |
KR (1) | KR20020077116A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040066372A1 (en) * | 2002-10-02 | 2004-04-08 | Keun-Woo Park | Single integrated circuit for optical mouse |
US20050225535A1 (en) * | 2004-04-09 | 2005-10-13 | Anderson Mark A | Programmable optical mouse |
US20070102777A1 (en) * | 2005-11-10 | 2007-05-10 | Microsoft Corporation | Electronic packaging for optical emitters and sensors |
US20080181526A1 (en) * | 2007-01-31 | 2008-07-31 | Kai Yin Cheong | System and method for reducing jitter during an optical navigation operation |
CN103995604A (en) * | 2013-02-18 | 2014-08-20 | 原相科技股份有限公司 | Optical navigation system and optical navigation device of optical navigation system |
TWI501115B (en) * | 2013-02-06 | 2015-09-21 | Pixart Imaging Inc | Optical navigation system and optical navigation apparauts thereof |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1321391C (en) * | 2003-10-22 | 2007-06-13 | 凌阳科技股份有限公司 | Moving vector dynamic searching method and apparatus for optical mouse |
CN100407119C (en) * | 2004-04-30 | 2008-07-30 | 原相科技股份有限公司 | Programmable optical pointer device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6084574A (en) * | 1992-10-05 | 2000-07-04 | Logitech, Inc. | Compact cursor pointing device utilizing photodetector array |
US5578813A (en) * | 1995-03-02 | 1996-11-26 | Allen; Ross R. | Freehand image scanning device which compensates for non-linear movement |
TW472206B (en) * | 1998-03-30 | 2002-01-11 | Agilent Technologies Inc | Seeing eye mouse for a computer system |
US6151015A (en) * | 1998-04-27 | 2000-11-21 | Agilent Technologies | Pen like computer pointing device |
-
2001
- 2001-03-28 US US09/821,180 patent/US20020140677A1/en not_active Abandoned
-
2002
- 2002-02-04 EP EP02002583A patent/EP1246125A3/en not_active Withdrawn
- 2002-03-27 KR KR1020020016614A patent/KR20020077116A/en not_active Application Discontinuation
- 2002-03-27 JP JP2002087461A patent/JP2002358158A/en active Pending
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040066372A1 (en) * | 2002-10-02 | 2004-04-08 | Keun-Woo Park | Single integrated circuit for optical mouse |
US6999064B2 (en) * | 2002-10-02 | 2006-02-14 | Samsung Electro Mechanics Co., Ltd. | Single integrated circuit for optical mouse |
US20050225535A1 (en) * | 2004-04-09 | 2005-10-13 | Anderson Mark A | Programmable optical mouse |
US7567234B2 (en) * | 2004-04-09 | 2009-07-28 | Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. | Programmable optical mouse |
US20070102777A1 (en) * | 2005-11-10 | 2007-05-10 | Microsoft Corporation | Electronic packaging for optical emitters and sensors |
US7233025B2 (en) | 2005-11-10 | 2007-06-19 | Microsoft Corporation | Electronic packaging for optical emitters and sensors |
US20080181526A1 (en) * | 2007-01-31 | 2008-07-31 | Kai Yin Cheong | System and method for reducing jitter during an optical navigation operation |
US8022984B2 (en) * | 2007-01-31 | 2011-09-20 | Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. | System and method for reducing jitter during an optical navigation operation |
TWI501115B (en) * | 2013-02-06 | 2015-09-21 | Pixart Imaging Inc | Optical navigation system and optical navigation apparauts thereof |
CN103995604A (en) * | 2013-02-18 | 2014-08-20 | 原相科技股份有限公司 | Optical navigation system and optical navigation device of optical navigation system |
Also Published As
Publication number | Publication date |
---|---|
EP1246125A3 (en) | 2003-07-16 |
KR20020077116A (en) | 2002-10-11 |
JP2002358158A (en) | 2002-12-13 |
EP1246125A2 (en) | 2002-10-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: AGILENT TECHNOLOGIES, INC., COLORADO Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MISEK, BRIAN J.;ANDERSON, MARK A.;WALLACE, HUGH;REEL/FRAME:011908/0632 Effective date: 20010406 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |